Making nature flower with blender

Hi, i’m new here, i want to do a flower render more realistic but i dont know how to do the floor texture. i think the shadow are too bad too. please masters help me!!!
sorry my bad english…

To start with, the flower right now looks a lot like plastic. You should try to reduce/soften the specularity. The flower’s leaves are also rather green, almost neon, you might want to try and tone that down a bit. Also, the petals overlap each other, is that intentional? because right now it seems like an overuse of the spin tool. Do you have a particular type of flower that you’re trying to replicate? Or is it from your mind, because even if you’re creating it, real life reference photos always help. Hope these suggestions can get you started.